Information disclosure in Red Hat Ansible



Published: 2021-08-08
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-10729
CWE-ID CWE-330
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Ansible
Server applications / Remote management servers, RDP, SSH

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use of insufficiently random values

EUVDB-ID: #VU55643

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-10729

CWE-ID: CWE-330 - Use of Insufficiently Random Values

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to usegae of insufficiently random values in Ansible. Two random password lookups of the same length generate the equal value as the template caching action for the same file since no re-evaluation happens.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ansible: 2.9.0, 2.9.0 rc1, 2.9.0 rc2, 2.9.0 rc3, 2.9.0 rc4, 2.9.0 rc5, 2.9.0b1, 2.9.1, 2.9.2, 2.9.3, 2.9.4, 2.9.5

CPE2.3 External links

http://github.com/ansible/ansible/issues/34144
http://bugzilla.redhat.com/show_bug.cgi?id=1831089

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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